For example, in the following exchange,
"Shut up!" she yelled. "I can't think when you ramble."
(For context, it's for a novel or online story publication.) I want to emphasize the two words shut up using italics. Normally, if there was only one word or a part of a sentence emphasized, I would only italicize that word or part:
"I said there were three people missing. Can't you ever listen?"
Clearly, only the word is italicized. What if the whole dialog is emphasized? Which is correct:
"Shut up!" she yelled. (only the two words are italicized)
"Shut up!" she yelled (the exclamation mark is italicized)
"Shut up!" she yelled (the whole sentence, including quotation marks, is italicized.)
Or are none of these correct?